Even 2003UB313 hasn't been officially called a planet. The discoverer has been using that term since it's bigger than Pluto, but it's up to the IAU to decide. Possibly Pluto could get demoted instead.
-John --- Pradipta shrestha <[EMAIL PROTECTED]> wrote: > > Why are you calling 2003EL61 a planet? It is just one of the KBOs. > Officially 2003UB313 has been qualified as a planet. The confusion might have > occured due to same time announcement of discovery of the other object. > Pradipta Shrestha > > John Mahony <[EMAIL PROTECTED]> wrote: > Well, at least you can see it, barely separated from the star. I do some > asteroid chasing (mostly follow-up astrometric measurements of newly > discovered > near-earth asteroids), and this is a common problem. In fact, EL61 is > currently in a sparse area of the sky, near the galactic pole. You should > see > what happens when I try to find an object moving through the plane of the > Milky > Way! > > -John > > > --- Robert Vanderbei <[EMAIL PROTECTED]> wrote: > > > Hi John, > > > > You are right. How unlucky can I be. I'll have to try again sometime. > > > > --Bob > > > > John Mahony wrote: > > > > >It looks like you got it, but the situation is not as simple as it looks. > > At > > >the time of your picture, 2003 EL61 (mag 17.5) was almost exactly at the > > >location of a slightly brighter mag 17.1 star- the separation is only > about > > 4". > > > But the time of your CdC screen capture is about 1 hour later, by which > > time > > >2003 EL61 was so close to the star that the asteroid symbol in CdC covers > > the > > >star. > > >You might also need to use the "show more stars" icon to show the fainter > > >stars. > > > > > >Look closely at the image and you'll see two objects at the location > > indicated > > >by CdC. The slightly brighter object on the left is the star. 2003 EL61 > is > > >fainter, a few pixels to the right and slightly up. > > > > > >If you "show more stars" in CdC, you'll also notice a mag 17.7 star barely > > >showing in your image about 38" north and slightly east (left) of 2003 > EL61 > > and > > >the first star. > > > > > >-John > > > > > > > > > > > > > > >--- Robert Vanderbei <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > >>My understanding is that one of the 3 new planets announced a week or > > >>two ago is designated > > >>2003EL61. I got ephemeris info from the Cartes-du-Ciel user's group. > > >>Last night I imaged the > > >>correct patch of sky. From the ephemeris file, the object is listed as > > >>mag 17.5. > > >>If that is correct, then I think I successfully imaged it (just barely). > > >> > > >>The image and the corresponding sky chart are posted here: > > >> > > >>http://www.princeton.edu/~rvdb/images/NJP/2003EL61.html > > >> > > >>It was rather low in the early evening and so there was lots of NJ sky > > >>glow---not a very pretty > > >>image. Nonetheless, it seems that I got it. > > >> > > >>And, not to waste the first clear evening in a long time, I grabbed a > > >>snapshot of M92 too: > > >> > > >>http://www.princeton.edu/~rvdb/images/NJP/m92.html > > >> > > >>-- Bob > > >>Robert J. Vanderbei > > >>http://www.princeton.edu/~rvdb > > >> > > >> > > >> > > >> > > >>Yahoo! Groups Links > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > > > > > > > > > > > > > >____________________________________________________ > > >Start your day with Yahoo! - make it your home page > > >http://www.yahoo.com/r/hs > > > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > Robert J. Vanderbei > > http://www.princeton.edu/~rvdb > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > > > --------------------------------- > YAHOO! GROUPS LINKS > > > Visit your group "skychart-discussion" on the web. > > To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to the Yahoo! 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